Save ACPI information in context so that we can match machine driver with sdw _ADR matching tables.
Suggested-by: Guennadi Liakhovetski guennadi.liakhovetski@linux.intel.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- drivers/soundwire/intel_init.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
diff --git a/drivers/soundwire/intel_init.c b/drivers/soundwire/intel_init.c index 8d3992f9fcdd..047252a91c9e 100644 --- a/drivers/soundwire/intel_init.c +++ b/drivers/soundwire/intel_init.c @@ -188,7 +188,11 @@ static struct sdw_intel_ctx struct sdw_intel_link_res *link; struct sdw_intel_ctx *ctx; struct acpi_device *adev; + struct sdw_slave *slave; + struct list_head *node; + struct sdw_bus *bus; u32 link_mask; + int num_slaves = 0; int count; int i;
@@ -265,6 +269,26 @@ static struct sdw_intel_ctx link->cdns = platform_get_drvdata(pdev);
list_add_tail(&link->list, &ctx->link_list); + bus = &link->cdns->bus; + /* Calculate number of slaves */ + list_for_each(node, &bus->slaves) + num_slaves++; + } + + ctx->ids = devm_kcalloc(&adev->dev, num_slaves, + sizeof(*ctx->ids), GFP_KERNEL); + if (!ctx->ids) + goto err; + + ctx->num_slaves = num_slaves; + i = 0; + list_for_each_entry(link, &ctx->link_list, list) { + bus = &link->cdns->bus; + list_for_each_entry(slave, &bus->slaves, node) { + ctx->ids[i].id = slave->id; + ctx->ids[i].link_id = bus->link_id; + i++; + } }
return ctx;